程序包 ohos.accessibility

接口 AccessibilityStateObserver

public interface AccessibilityStateObserver

Observes the accessibility status.

This interface is called to register an observer for listening to accessibility status changes. When the accessibility status has changed, a callback is triggered to send the status change event specified by AccessibilityStateEvent.

从以下版本开始:

1

另请参阅:

AccessibilitySystemAbilityClient.subscribeStateObserver(AccessibilityStateObserver, int), AccessibilityStateEvent

SystemCapability

SystemCapability.Accessibility#ABILITY

方法概要

限定符和类型	方法	说明
void	onStateChanged(AccessibilityStateEvent stateEvent)	Receives notifications on accessibility status changes.

方法详细资料

onStateChanged

void onStateChanged(AccessibilityStateEvent stateEvent)

Receives notifications on accessibility status changes.

For example, when the accessibility status has changed, the interface will receive a status change event and then notify the user that the accessibility ability is unavailable.

参数:

stateEvent - Indicates the status change event.

另请参阅:

AccessibilityStateEvent